EP2256390A2 - Bidirektionales Überdruck-Absperrventil - Google Patents

Bidirektionales Überdruck-Absperrventil Download PDF

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Publication number
EP2256390A2
EP2256390A2 EP20100162799 EP10162799A EP2256390A2 EP 2256390 A2 EP2256390 A2 EP 2256390A2 EP 20100162799 EP20100162799 EP 20100162799 EP 10162799 A EP10162799 A EP 10162799A EP 2256390 A2 EP2256390 A2 EP 2256390A2
Authority
EP
European Patent Office
Prior art keywords
fluid
valve
port
actuator
operated switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20100162799
Other languages
English (en)
French (fr)
Inventor
Bradley Krake
Cecilia Lam
Anthony Matarazzo
Kenneth Roberts
Paul Banta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Publication of EP2256390A2 publication Critical patent/EP2256390A2/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
    • F16K31/1245—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated with more than one valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
    • F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7759—Responsive to change in rate of fluid flow
    • Y10T137/776—Control by pressures across flow line valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7761—Electrically actuated valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type

Definitions

  • the present invention generally relates to fluid-operated valves, and more particularly relates to a fluid-operated valve that includes a back-up shut-off capability to protect downstream components.
  • Valves are used in myriad systems and environments, and may be operated in numerous and varied ways. Some valves are manually operated, others are operated via electrical, hydraulic, pneumatic, or various other types of actuators.
  • a flow control valve is installed in an aircraft environmental control system. In such an implementation, the flow control valve is operated via a pneumatic actuation device that will open the flow control valve upon receipt of pressurized air upstream of the flow control valve. It may additionally be desirable, in such implementations, that the flow control valve include a shut-off mechanism that prevents downstream flow ducts from reaching or exceeding a particular pressure.
  • control valve which may be used in an aircraft environmental control system, that is normally-closed, is capable of being opened with pressure from either upstream or downstream of the control valve, is capable of being closed upon receipt of a suitable electrical signal, implements a backup means of closing if the electrical signal is not received, and is able to in the event that upstream pressure exceeds the electrical or backup closing setpoint.
  • a control valve which may be used in an aircraft environmental control system, that is normally-closed, is capable of being opened with pressure from either upstream or downstream of the control valve, is capable of being closed upon receipt of a suitable electrical signal, implements a backup means of closing if the electrical signal is not received, and is able to in the event that upstream pressure exceeds the electrical or backup closing setpoint.
  • a valve assembly in one embodiment, includes a valve body, a valve element, a valve actuator, and a fluid-operated switch.
  • the valve body defines a flow passage having at least an inlet port and an outlet port.
  • the valve element is disposed at least partially within the flow passage and is moveable between an open position and a closed position.
  • the valve actuator is coupled to the valve and is responsive to pressurized fluid supplied thereto and vented therefrom to move the valve element between the open position and the closed position, respectively.
  • the fluid-operated switch has a first fluid inlet, a second fluid inlet, a third fluid inlet, an actuator port, and an actuator vent port.
  • the fluid-operated switch is in fluid communication with the valve actuator and is operable to selectively supply pressurized fluid to the actuator via the actuator port, and vent the pressurized fluid from the actuator via the actuator port and the actuator vent port.
  • a valve assembly in another embodiment, includes a valve body, a valve element, a valve actuator, a shuttle valve housing, a shuttle element, and a fluid-operated switch.
  • the valve body defines a flow passage having at least an inlet port and an outlet port.
  • the valve element is disposed at least partially within the flow passage and is moveable between an open position and a closed position.
  • the valve actuator is coupled to the valve and is responsive to pressurized fluid supplied thereto and vented therefrom to move the valve element between the open position and the closed position, respectively.
  • the shuttle valve housing has a first fluid port in fluid communication with the valve body flow passage inlet port, a second fluid port in fluid communication with the valve body flow passage outlet port, and a third fluid port.
  • the shuttle element is disposed within the shuttle valve housing and is movable between a first position, in which the second fluid port is in fluid communication with the third fluid port and the shuttle element fluidly isolates the first fluid port from the third fluid port, and a second position, in which the first fluid port is in fluid communication with the third fluid port and the shuttle element fluidly isolates the second fluid port from the third fluid port.
  • the fluid-operated switch has a first fluid inlet, a second fluid inlet, a third fluid inlet, an actuator port, and an actuator vent port.
  • the fluid-operated switch first fluid inlet is in fluid communication with the valve body flow passage outlet port
  • the fluid-operated third fluid inlet is in fluid communication with the shuttle valve housing third fluid port
  • the fluid operated switch actuator port is in fluid communication with the valve actuator.
  • the fluid-operated switch is operable to selectively supply pressurized fluid to the actuator via the fluid-operated switch actuator port, and vent the pressurized fluid from the actuator via the fluid-operated switch actuator port and the fluid-operated switch actuator vent port.
  • FIG. 1 depicts a detailed schematic representation of an exemplary embodiment of a fluid-operated valve
  • FIG. 2 a detailed schematic representation of an exemplary alternative embodiment of a fluid-operated valve.
  • the fluid-operated valve 100 includes a valve body 102, a valve element 104, a valve actuator 106, a fluid-operated switch 108, and a control valve 110.
  • the valve body 102 is adapted to be coupled, and to selectively provide fluid communication, to a non-illustrated pressurized fluid source.
  • the valve body 102 defines a flow passage 112 having a fluid inlet port 114 adapted to couple to the non-illustrated pressurized fluid source, and a fluid outlet port 116 adapted to couple to one or more downstream systems or components.
  • a downstream system is the environmental control system of a commercial airliner.
  • the valve element 104 is disposed within the flow passage 112 and is moveable between a closed position and an open position, to thereby control pressurized air flow through the flow passage 112. In the closed position, which is shown in FIG. 1 , the valve element 104 prevents pressurized air flow from the fluid inlet port 114, through the flow passage 112, to the fluid outlet port 116. Conversely, when the valve element 104 is in the open position, pressurized air may flow through the flow passage 112.
  • the valve element 104 may be implemented using any one of numerous types of valves useful to selectively isolate an upstream pressurized fluid source from a downstream component and/or system. In the depicted embodiment, however, the valve element 104 is a butterfly valve.
  • the valve actuator 106 is coupled to the valve element 104 and is configured to selectively move the valve element 104 between its open and closed positions.
  • the valve actuator 106 includes an actuator housing 118, a piston 120, and a piston bias spring 122.
  • the actuator housing 118 has an inner surface 124 that defines a piston chamber 126, within which the piston 120 is movably disposed.
  • the piston 120 in addition to being movably disposed within the piston chamber 126, is coupled to the valve element 104 via a plurality of links 121, 123.
  • the piston 120 also divides the piston chamber 126 into a closing chamber 128, an opening chamber 130, and a vent chamber 132.
  • the closing chamber 128 and the opening chamber 130 are each in fluid communication with the fluid-operated switch 108, and the vent chamber 132 is in fluid communication with the ambient environment outside the actuator housing 118.
  • the piston bias spring 122 is disposed within the vent chamber 132 between the actuator housing inner surface 124 and the piston 120.
  • the piston bias spring 122 supplies a force to the piston 120 that urges the valve element 104 toward its closed position.
  • the piston bias spring 122 biases the piston 120 upwardly, though it will be appreciated that this is merely illustrative.
  • the fluid-operated switch 108 is in fluid communication with the valve actuator 108 and includes a first fluid inlet 134, a second fluid inlet 136, a third fluid inlet 138, an actuator port 140, and an actuator vent port 142.
  • the fluid-operated switch 108 is operable to selectively supply pressurized fluid to the valve actuator via the actuator port 140, and selectively vent the pressurized fluid from the valve actuator 106 via the actuator port 140 and the actuator vent port 142.
  • the fluid-operated switch 108 includes a switch housing 144, a first diaphragm 146, a second diaphragm 148, and a valve element 150.
  • the first diaphragm 146 is disposed within the switch housing 144 and defines a first chamber 152 that is in fluid communication with a chamber vent port 145.
  • the second diaphragm 148 is also disposed within the switch housing 144 and defines a second chamber 154 that is in fluid communication with first fluid inlet 134.
  • the second diaphragm 148 is smaller than, and is spaced apart from, the first diaphragm 146.
  • the first and second diaphragms 146, 148 together define a third chamber 155 that is fluidly isolated from the first and second chambers 152, 154, but is in fluid communication with the second fluid inlet 136.
  • the valve element 150 is coupled to the first and second diaphragms 146, 148 via suitable hardware, and is movable between a first position and a second position.
  • first position which is the position depicted in FIG. 1
  • the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch third fluid inlet 138 and is fluidly isolated from the fluid-operated switch actuator vent port 142.
  • second position the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch actuator vent port 142 and is fluidly isolated from the fluid-operated switch third fluid inlet 138.
  • the fluid-operated switch 108 further includes a first spring 156 and a second spring 158.
  • the first spring 156 is disposed within the first chamber 152 and supplies a force to the valve element 150 that urges the valve element 150 toward its first position.
  • the second spring 158 is disposed within the second chamber 154 and supplies a force to the valve element 150 that urges the valve element 150 toward its second position.
  • the first spring 156 is sized and configured such that it supplies a prescribed force. When there is substantially equal pressures within the first, second, and third chambers 152, 154, 155, the valve element 150 will be in its first position.
  • the control valve 110 includes an inlet 160, an outlet 162, a vent port 164, a control element 166, a solenoid 168, and a solenoid bias spring 170.
  • the control valve inlet 160 is in fluid communication with the fluid-operated switch third fluid inlet 138
  • the control valve outlet 162 is in fluid communication with the fluid-operated switch second fluid inlet 136.
  • the vent port 164 as may be seen, is in fluid communication with the ambient environment.
  • the control element 166 is movable between a first position and a second position.
  • the control element 166 is implemented as a double ball type valve, though it will be appreciated that this is merely exemplary of a particular preferred embodiment, and that various other types of elements could be used. No matter the particular type of element that is used, when the control element 166 is in the first position, which is the position depicted in FIG. 1 , the control valve outlet 162 is in fluid communication with the control valve vent port 164 and not in fluid communication with the control valve inlet 160. Conversely, when the control element 166 is in the second position, the control valve outlet 162 is in fluid communication with the control valve inlet 160 and not in fluid communication with the control valve vent port 164.
  • valve element 104 when the control element 166 is moved from the first position to the second position while the valve element 104 is open, the end result is that the valve element 104 will close. In addition, when the valve is subsequently moved from the second position to the first position, the valve element 104 may be re-opened.
  • the solenoid 168 is coupled to the control element 166, and includes one or more coils 172 and a movable armature 174. As is generally known, when a solenoid coil 172 is energized, it generates a magnetic force that acts on the armature 174, causing it to move. In the depicted embodiment, the solenoid 168 is configured such that when the solenoid coil 172 is energized, the armature 174 moves the control element 166, against the bias force of the solenoid bias spring 170, to the second position.
  • the solenoid bias spring 170 as may be readily ascertained, supplies a force that urges the control element 166 toward the first position.
  • the valve assembly 100 additionally includes a shuttle valve 176 and first and second filter elements 178 (e.g., 178-1, 178-2).
  • the filters 178 are optional, but if included assist in keeping debris out of the various valve assembly components and interconnecting plumbing.
  • the shuttle valve 176 includes a housing 182 and a shuttle element 184.
  • the shuttle valve housing 182 includes three fluid ports - a first fluid port 186, a second fluid port 188, and a third fluid port 190.
  • the first fluid port 186 is in fluid communication with the valve body flow passage inlet port 114
  • the second fluid port 188 is in fluid communication with the valve body flow passage outlet port 116
  • the third fluid port 190 is in fluid communication with the fluid-operated switch third fluid inlet port 138, the control valve inlet 160, and the actuator closing chamber 128.
  • the shuttle element 184 is disposed within the shuttle valve housing 182 and is movable between a first position (shown in FIG. 1 ) and a second position (not shown). In the first position, the second fluid port 188 is in fluid communication with the third fluid port 190, and the shuttle element 184 fluidly isolates the first fluid port 186 from the third fluid port 190. In the second position, the first fluid port 186 is in fluid communication with the third fluid port 190, and the shuttle element 184 fluidly isolates the second fluid port 188 from the third fluid port 190.
  • valve assembly 100 Having described the fluid-operated valve assembly 100 from a structural standpoint, a description of how the valve assembly 100 functions will now be provided. In the following discussion, it is presumed that the valve element 104 is initially in the closed position. It is additionally presumed that the solenoid 170 is de-energized, and the control element 166 is thus in the first position.
  • pressurized fluid may be supplied to either the valve body flow passage inlet 114 or the valve body flow passage outlet 116. Assuming initially that pressurized fluid is supplied to the valve body flow passage inlet 114, this pressurized fluid will move the shuttle element 184 to its second position. As a result, pressurized fluid is supplied, via the shuttle valve housing first and third fluid ports 186, 190, to the fluid-operated switch third fluid inlet port 138, the control valve inlet 160, and the actuator closing chamber 128.
  • the shuttle valve housing second fluid port 188 is fluidly isolated from the pressurized fluid.
  • the fluid-operated switch first fluid inlet 134, and hence the fluid-operated switch second chamber 154 are also fluidly isolated from the pressurized fluid.
  • the control element 166 is in the first position, pressurized fluid does not flow through the control valve 110, and the fluid-operated switch third chamber 155 is vented to the ambient environment via the control valve vent port 164. It may thus be appreciated that the differential pressures across both the first diaphragm 146 and the second diaphragm 148 are essentially zero, and the valve element 150 will be in its first position.
  • the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch third fluid inlet 138 and is fluidly isolated from the fluid-operated switch actuator vent port 142. Because the fluid-operated switch actuator port 140 is also in fluid communication with the actuator opening chamber 130, the pressurized fluid flows into, and increases fluid pressure in, the actuator opening chamber 130.
  • the piston 120 will moves downwardly (using the frame of reference of FIG. 1 ). As the piston 120 moves downwardly, it moves the valve element 104, via the links 121, 123, to the open position. Pressurized fluid may then flow through the valve body 102.
  • valve element 104 may also be moved from its closed position to its open position by supplying pressurized fluid to the valve body flow passage outlet 116.
  • pressurized fluid supplied to the valve body flow passage outlet 116, the shuttle element 184 will move to its first position.
  • pressurized fluid is supplied, via the shuttle valve housing second and third fluid ports 188, 190, to the fluid-operated switch third fluid inlet port 138, the control valve inlet 160, and the actuator closing chamber 128.
  • the shuttle valve housing first fluid port 186 is fluidly isolated from the pressurized fluid.
  • the fluid-operated switch first fluid inlet 134, and hence the fluid-operated switch second chamber 154 are fluidly coupled to receive the pressurized fluid.
  • the control element 166 is in the first position, pressurized fluid does not flow through the control valve 110, and the fluid-operated switch third chamber 155 is vented to the ambient environment via the control valve vent port 164. It may thus be appreciated that the differential pressure across the first diaphragm 146 is essentially zero, while the differential pressure across the second diaphragm 148 is non-zero and supplies a force that urges the valve element toward its second position.
  • first and second diaphragms 146, 148 and the first and second springs 156, 158 are such that the valve element 150 will remain in its first position unless a predetermined fluid pressure in the second chamber 154 is reached.
  • the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch third fluid inlet 138 and is fluidly isolated from the fluid-operated switch actuator vent port 142. Because the fluid-operated switch actuator port 140 is also in fluid communication with the actuator opening chamber 130, the pressurized fluid flows into, and increases fluid pressure in, the actuator opening chamber 130.
  • the piston 120 moves downwardly (using the frame of reference of FIG. 1 ). As the piston 120 moves downwardly, it moves the valve element 104, via the links 121, 123, to the open position. Pressurized fluid may then flow through the valve body 102.
  • the valve assembly 100 is additionally configured to automatically move the valve element 104 from an open position to the closed position, if fluid pressure downstream of the valve element 104 exceeds a predetermined pressure value.
  • This automated closing is preferably implemented by electrically energizing the control valve solenoid 170.
  • the valve assembly 100 is configured to automatically start closing the valve element 104 and thereby limit downstream fluid pressure. The manner in which each of these closing operations may occur will now be described.
  • downstream fluid pressure may be sensed by a suitable sensing device, which supplies a pressure signal representative of the downstream fluid pressure to a suitable control device.
  • the control device in response to the pressure signal, may selectively energize the control valve solenoid 170 when the pressure signal indicates that the predetermined pressure value is reached or exceeded.
  • the control element 166 is moved, as described previously, to its second position. With the control element 166 in its second position, the control valve outlet 162 is in fluid communication with the control valve inlet 160, and is no longer in fluid communication with the control valve vent port 164. Hence, the third chamber 155 is no longer in fluid communication with the ambient environment, but is now in fluid communication with the control valve inlet port 160. The fluid pressure in the third chamber 155 supplies a force to the first diaphragm 146 counter to the spring force supplied by the first spring 156.
  • the relative sizing of the first and second diaphragms 146, 148 and the relative sizing of the first and second springs 156, 158 are selected such that when the third chamber 155 is pressurized to a predetermined pressure, the overall force acting on the valve element 150 will cause the valve element to move to its second position.
  • the fluid-operated switch actuator port 140 With the valve element 150 in its second position, the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch actuator vent port 142 and is fluidly isolated from the fluid-operated switch third fluid inlet 138.
  • the fluid pressure in the actuator opening chamber 130 is vented to the ambient environment, and the piston bias spring 122 and fluid pressure in the actuator closing chamber 128 move the piston 120 upwardly (using the frame of reference of FIG. 1 ).
  • the piston 120 moves upwardly, it moves the valve element 104, via the links 121, 123, to the closed position.
  • the fluid-operated switch 108 will close (or at least start to close) the valve element 104 and limit downstream pressure. For example, if the predetermined pressure value is reached and the solenoid 170 is not energized, it may be seen that the first and third chambers 152, 155 in the fluid-operated switch 108 will be at the ambient environment pressure, whereas the second chamber 154 in the fluid-operated switch 108 will be at the downstream fluid pressure.
  • the differential fluid pressure across the first diaphragm 146 will thus be zero, while the differential fluid pressure across the second diaphragm 148 will be non-zero.
  • the first and second diaphragms 146, 148 and the first and second springs 156, 158 are sized such that the force on the second diaphragm 148 resulting from the non-zero differential fluid pressure is sufficient to cause the valve element 150 to move to the second position, or at least partially out of its first position.
  • the fluid-operated switch actuator port 140 When the valve element 150 moves out of its first position, the fluid-operated switch actuator port 140 is in fluid communication with the fluid-operated switch actuator vent port 142. As a result, the fluid pressure in the actuator opening chamber 130 is vented to the ambient environment, and the piston bias spring 122 and fluid pressure in the actuator closing chamber 128 move the piston 120 upwardly (using the frame of reference of FIG. 1 ). As the piston 120 moves upwardly, it moves the valve element 104, via the links 121, 123, to the closed position (or at least toward the closed position).
  • valve assembly 100 depicted in FIG. 1 is exemplary of one particular preferred embodiment.
  • FIG. 2 Another embodiment is depicted in FIG. 2 .
  • This valve assembly 200 is configured substantially similar to that of FIG. 1 , but with a differently configured fluid-operated switch 208 and a slightly modified control valve 210. All other components of the alternative valve assembly 200 are substantially identical to the valve assembly 100 depicted in FIG. 1 , and like reference numerals in FIG. 2 refer to like components in FIG. 1 .
  • the like components of these two embodiments will not be once again described.
  • the only difference between the control valve 210 of FIG. 2 is that the control element 166 is implemented as a single ball type valve, rather than a double ball type valve. As such, its configuration and function will not be further described.
  • the fluid-operated switch 208 includes a first fluid inlet 234, a second fluid inlet 236, a third fluid inlet 238, an actuator port 240, an actuator vent port 242, a switch housing 244, a first diaphragm 246, a second diaphragm 248, and a valve element 250.
  • the fluid-operated switch 208 like the previous embodiment, is also operable to selectively supply pressurized fluid to the valve actuator 106 via the actuator port 240, and selectively vent the pressurized fluid from the valve actuator 106 via the actuator port 240 and the actuator vent port 242.
  • the first diaphragm 246 is disposed within the switch housing 244 and defines a first chamber 252 that is in fluid communication with the actuator vent port 242.
  • the second diaphragm 248 is also disposed within the switch housing 244 and defines a second chamber 254 that is in fluid communication with first fluid inlet 234.
  • the second diaphragm 248 is smaller than, and is spaced apart from, the first diaphragm 246.
  • the first and second diaphragms 246, 248 together define a third chamber 255 that is fluidly isolated from the first and second chambers 252, 254, but is in fluid communication with the second fluid inlet 236.
  • the valve element 250 is coupled to the first and second diaphragms 246, 248 via suitable hardware, and is movable between a first position and a second position.
  • the fluid-operated switch actuator port 240 In the first position, which is the position depicted in FIG. 2 , the fluid-operated switch actuator port 240 is in fluid communication with the fluid-operated switch third fluid inlet 238 and is fluidly isolated from the fluid-operated switch actuator vent port 242.
  • the fluid-operated switch actuator port 240 In the second position, the fluid-operated switch actuator port 240 is in fluid communication with the fluid-operated switch actuator vent port 242 and is fluidly isolated from the fluid-operated switch third fluid inlet 238.
  • the fluid-operated switch 208 depicted in FIG. 2 includes only a single spring 256.
  • the spring 256 is disposed within the first chamber 252 and supplies a force to the valve element 250 that urges the valve element 250 toward its first position. It should be understood that the first and second diaphragms 246, 248 and the spring 256 are sized to implement the same functionality as the fluid-operated switch 108 depicted in FIG. 1 and described above.
  • valve assembly 200 of FIG. 2 is substantially identical to that of the valve assembly 100 of FIG. 1 . Therefore, the operation of this valve assembly 200 need not, and thus will not, be repeated.
  • valve assemblies 100, 200 depicted and described herein may be used in any one of numerous fluid systems for any one of numerous purposes.
  • One non-limiting example is as an over-pressure shutoff-valve in an aircraft environmental control system.
  • the valve assembly 100, 200 may be configured to open upon the application of a fluid pressure of, for example, about 20 psig from either upstream or downstream of the valve element 104.
  • the valve assembly 100, 200 will close upon energizing the solenoid 170. Should downstream fluid pressure increase above a predetermined pressure value, the valve assembly 100, 200 will start to close and, if the high fluid pressure originates upstream of the valve element 104, will limit downstream fluid pressure to another predetermined pressure value.
  • the upstream fluid pressure may build as high as about 120 psig and the valve assembly 100, 200 will still open if the solenoid 170 is de-energized. Though not depicted or described, in some embodiments the valve element 104 may be locked in the open position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
EP20100162799 2009-05-26 2010-05-13 Bidirektionales Überdruck-Absperrventil Withdrawn EP2256390A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/472,231 US8286661B2 (en) 2009-05-26 2009-05-26 Bi-directional overpressure shut-off valve

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EP2256390A2 true EP2256390A2 (de) 2010-12-01

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CN104121409A (zh) * 2014-07-14 2014-10-29 河北钢铁股份有限公司唐山分公司 一种改进密封结构的蓄热式加热炉三通换向阀
US9346549B2 (en) 2013-07-30 2016-05-24 Airbus Operations S.A.S. Method for regulating the de-icing of a leading edge of an aircraft and device for its implementation
EP3246606A1 (de) * 2016-05-17 2017-11-22 Hamilton Sundstrand Corporation Elektromagnetisches vorsteuerventil für gasturbinenentlüftungsventile

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US9915373B2 (en) * 2011-07-08 2018-03-13 Fmc Technologies, Inc. Electronically controlled pressure relief valve
US9145904B2 (en) * 2011-10-17 2015-09-29 Emerson Process Management Regulator Technologies, Inc. Pilot operated fluid regulators having a reset apparatus and related methods
NO336835B1 (no) * 2012-03-21 2015-11-16 Inflowcontrol As Et apparat og en fremgangsmåte for fluidstrømstyring
US9400060B2 (en) 2012-05-21 2016-07-26 VRG Controls, LLC Gas line control system and modular variable pressure controller
ES2463915B1 (es) * 2012-11-29 2015-04-15 Aqualogy Aqua Ambiente Servicios Integrales, S.A. Sistema para la regulación de presión en una tubería de suministro de un fluido
US9482346B2 (en) * 2013-09-13 2016-11-01 Clark Equipment Company System and method for controlling a compressor inlet valve
JP6101179B2 (ja) * 2013-09-17 2017-03-22 Ｋｙｂ株式会社 減衰弁
EP2886834A1 (de) * 2013-12-20 2015-06-24 IMI Hydronic Engineering International SA Ventil und Verfahren zur Steuerung eines Ventils in einer Fluidleitung
CN104405930B (zh) * 2014-11-06 2017-01-25 中国科学院工程热物理研究所 机械联动切断阀
JP6289358B2 (ja) * 2014-12-17 2018-03-07 株式会社コガネイ 間欠エア吐出装置
FR3036137B1 (fr) * 2015-05-13 2017-06-02 Snecma Vanne papillon de decharge de pression d'un compresseur pour turbomachine d'aeronef
US9760097B2 (en) * 2015-06-03 2017-09-12 Emerson Process Management Regulator Technologies, Inc. Adjustable deadband control system
US10443622B2 (en) * 2016-06-13 2019-10-15 United Technologies Corporation Active core cooling system
US10301963B2 (en) * 2016-12-28 2019-05-28 Hamilton Sundstrand Corporation Starter air valve systems configured for low speed motoring
FR3107732A1 (fr) * 2020-02-27 2021-09-03 Airbus Operations Systeme de regulation comportant une vanne, un regulateur, un actionneur et un systeme de refroidissement utilisant des tubes caloducs
WO2022006211A1 (en) * 2020-07-01 2022-01-06 Dresser, Llc Safety system for remote shut-off in resource distribution networks
US20220147074A1 (en) * 2020-11-06 2022-05-12 Hamilton Sundstrand Corporation Digitally augmented pneumatic control
US20230264132A1 (en) * 2022-02-23 2023-08-24 Hamilton Sundstrand Corporation Motorized valve with washing filter extending from a bleed conduit inlet into valve duct
US11906071B1 (en) * 2022-08-26 2024-02-20 Hamilton Sundstrand Corporation Remote passively and actively actuated valve systems

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119409A (en) * 1960-03-15 1964-01-28 Union Carbide Corp Thermochemical metal removal apparatus
US3433251A (en) * 1966-09-02 1969-03-18 Garrett Corp Regulator valve mechanism
US3769998A (en) * 1971-10-07 1973-11-06 Garrett Corp Regulator and shutoff valve
US4532390A (en) 1982-11-17 1985-07-30 Signal Lux S.P.A. Diaphragm pressure switch for controlling small pressure gradients
US4617958A (en) * 1985-07-25 1986-10-21 Sundstrand Corporation Control valve
US5035582A (en) 1990-01-22 1991-07-30 American Standard Inc. Electro-pneumatic governor for a compressed air-system
DE4322210B4 (de) 1993-07-03 2006-06-14 Wabco Gmbh & Co.Ohg Einrichtung zum Erzeugen von Druckgas
US6694746B2 (en) * 2002-02-06 2004-02-24 Honeywell International, Inc. Micro volume actuator for an air turbine starter
US7066710B2 (en) * 2004-05-27 2006-06-27 Honeywell International, Inc. Pneumatic valve control having improved opening characteristics and an air turbine starter incorporating the same
US20080197010A1 (en) 2007-02-21 2008-08-21 Chih Lin Apparatus and method for air relief in an air switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2998871A1 (fr) * 2012-12-05 2014-06-06 Airbus Operations Sas Vanne a double niveau de regulation et dispositif de degivrage d'une entree d'air d'une nacelle d'aeronef integrant ladite vanne
EP2740981A1 (de) 2012-12-05 2014-06-11 Airbus Operations (S.A.S) Ventil mit doppelter Regulierstufe, und Enteisungsvorrichtung eines Lufteinlasses einer mit diesem Ventil ausgestatteten Luftfahrzeuggondel
US9341280B2 (en) 2012-12-05 2016-05-17 Airbus Operations S.A.S. Dual regulation level valve and de-icing device for an air inlet of an aircraft engine nacelle incorporating said valve
US9346549B2 (en) 2013-07-30 2016-05-24 Airbus Operations S.A.S. Method for regulating the de-icing of a leading edge of an aircraft and device for its implementation
CN104121409A (zh) * 2014-07-14 2014-10-29 河北钢铁股份有限公司唐山分公司 一种改进密封结构的蓄热式加热炉三通换向阀
EP3246606A1 (de) * 2016-05-17 2017-11-22 Hamilton Sundstrand Corporation Elektromagnetisches vorsteuerventil für gasturbinenentlüftungsventile
US10180106B2 (en) 2016-05-17 2019-01-15 Hamilton Sundstrand Corporation Solenoids for gas turbine engine bleed valves

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